The Octane Number is retained owing to HZSM 5 � � s excellent ability of aromatization, isomerization and alkylation.HZSM-5沸石对汽油的降烯烃作用得益于其优异的芳构化 、 异构化和烷基化性能.These derivatives are readily obtained by alkylation of 2 - mer...
These derivatives are readily obtained by alkylation of 2 - mercaptopyridine and alkyl halides under alkaline conditions.这些衍生物可以容易地在碱性条件下通过 2- 巯基吡啶和卤代烷的烷基化而得到.The different contents of various alkylation products were ob...
Masturbation is so harmful to your body.手淫有害身体。In contrast, girls are likely to discover masturbation alone and by accident.反过来, 女孩大约都是独自或偶然发现自娱的乐趣.Masturbation is not a good thing when one shoots blanks repeatedly.这是华航启...
In this respect, the proceeding was functionally similar to a comparative licensing adjudication.在这一点上, 手续在作用上即类似于比较许可证发放的裁断.It satisfies the user's requirements both functionally and emotionally.它同时满足了用户在功能和情感上的需求。...
The area is renowned for its Romanesque churches.这个地区以其罗马式的教堂闻名。the strength and solidity of Romanesque architecture罗马式建筑坚固结实的特性The legacy of Ancient Rome represented the overwhelming influence on Romanesque architecture...
He was epileptic and refused to take medication for his condition.他患有癫痫，但是拒绝服药治疗。About two in every five epileptic fits occur during sleep.每5例癫痫病中约有两例是在睡眠过程中发作的。He suffered an epileptic fit.他癫痫发作了。...
He then soldered the wire to the telephone terminal.接着他把电话线焊接到电话机上。Three lead wires are soldered to the anchor terminals.在固定接线端子上焊有三根导线.He soldered the broken wires together.他将断了的电线焊接起来....